Citation

Dunlap DF. Highw. Res. Rec. 1973; 460: 10-19.

Copyright

(Copyright © 1973, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Impact evaluations are presented for several curb-guardrail combinations. The evaluations are carried out by conservatively assessing the possibility that a vehicle will vault a guardrail after it impacts a curb. Three parameters are examined: Approach velocity, approach angle, and guardrail setback from the curb face. Vaulting analyses are carried out by using curb-impact simulation data as imput to an analytically derived vaulting equation. All curb-guardrail combinations subjected to evaluation were found to be free of potential vaulting problems. A review of all known curb-guardrail tests shows no identifiable cases of vaulting by standard passenger-car test vehicles. A review of curb-guardrail use and the development of optimized curb-guardrail configurations are recommended. /author/

Language: en

Keywords

MATHEMATICAL MODELS; ROADS AND STREETS; HIGHWAY SYSTEMS - Accident Prevention